Compass attachment for wrist watch straps and bands



Feb. 13, 1951 C- MUEHLBAUER COMPASS ATTACHMENT FOR WRIST WATCH STRAPSAND BANDS Filed Feb. 11, 1948 2 Sheets-Sheet 1.

Carl Mueh/bauer INVENTOR.

MW FM Feb. 13, 1 951 c, MUEHLBAUER 2,541,432

COMPASS ATTACHMENT FOR WRIST WATCH STRAPS AND BANDS Filed Feb. 11, 19482 Sheets-Sheet 2 F/ 7. g I I s I 23 k 7/ ,1 a K I I\ q J Fig 8 CarlMueh/bauer IN V EN TOR.

J; A BY 4 may K j L .1

Patented Feb. 13, 1951 UNITED STATES PATENT OFFICE COMPASS ATTACHMENTFOR WRIST WATCH STRAPS AiND'BA'NDS Carl Muehlbauer, Flensburg, Minn.

Application February 11, 1948, Serial No. 7,683

1 1 Claim. l

The present invention relates to new and useful improvements in meansfor carrying a compass on the leather, metal or other strap of a wristwatch for convenient use or observaticn by the user.

An important object of the invention is to provide a compas case whichmay be installed in a wrist watch strap or bracelet at the time ofmanufacture of the latter, or which may be carried by a clip forattachin to the strap after the manufacture thereof.

A further object of the invention is to provide a compass attachment foruse in the manner indicated and which embodies a simple and practicalconstruction, which is neat and attractive in appearance, relativelyinexpensive to manufacture and otherwise well adapted for purposes forWhich the same is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

Figure 1 is a plan view showing the compass case provided with a clipfor attaching to a wrist watch strap.

Figure 2 is a perspective view of the assembled compass and clip.

Figure 3 is an enlarged sectional view taken substantially on a line 33of Figure 2.

Figure 4 is a perspective view showing the compass case carried directlyby a leather strap.

Figure 5 is an enlarged transverse sectional view taken substantially ona line 55 of Figure 4.

Figure 6 is a fragmentary perspective view of a metal wrist watch strapshowing the compass case mounted therein.

Figure 7 is an enlarged transverse sectional view taken substantially ona line 1-1 of Figure 6.

Figure 8 is a rear elevational view thereof.

Referring now to the drawings in detail and first with respect to theform of invention illustrated in Figures 1 to 3 inclusive the numeral 5designates an annular compass case of suitable material, the case beingsecured in an opening 6 of a clip I in any practical or conventionalmanner. The opening 6 is formed with an outwardly projecting flange orring 8 bearing against the sides of the compass case 5 to provide anincreased contacting surface between the sides of the compass and theclip to effectively hold the compass case in the openin of the clip.

The clip I is constructed to provide a pair of laterally extending arms9 having downwardly and inwardly curved hooks ID at the ends thereof anda longitudinally extending arm ll likewise having a downwardly andinwardly extending hook i2 at the end thereof.

The clip I is attached to the leather strap l3 of a wrist watch byplacing the clip on top of the strap and engaging the side edges of thestrap with the hooks H3 and engaging the end of the strap adjacent thewatch M by the hook I2. The compass is thus supported on the strap in aconvenient position immediately adjacent the watch and held againsttransverse as well as longitudinal movement on the strap.

In the form of the invention illustrated in Figures 4 and 5 the leatherstrap designated generally at H? is formed of a double layer of materialfolded upon itself to provide a loop H5 at its folded end for attachingto a watch and the upper layer of the material ll is formed with anopening 18 in which the compass case I9 is positioned. The base of thecompass case is formed with an annular flange 20 positioned between theupper and lower layers of the strap material, the leather being ofsufficient stiffness to firmly hold the compass case in position.

The upper and lower layers of the strap may be suitably secured to eachother such as by means of stitching 2 i.

In Figures 6 to 8 inclusive I have illustrated an expansible metal wristwatch strap 22 which includes upper and lower links 23 and 2d, the upperlinks, adjacent the wrist watch attaching sleeve or loop 25 being unitedas shown at 2 6 and formed with an opening 21 therein and in which thecompass case 28 is suitably secured.

In view of the foregoing description taken in conjunction with theaccompanying drawings it is believed that a clear understanding of thedevice will be quite apparent to those skilled in this art. A moredetailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shownand described a preferred embodiment of the invention the same issusceptible to certain changes fully comprehended by the spirit of theinvention as herein described and the scope of the appended claim.

Having described the invention, what is claimed as new is:

A clip comprising a fiat sheet of rigid material having an openingadapted for receiving an instrument case positioned in the opening withthe back of the case flush with the underside of the clip, a pair ofarms extending outwardly from diametrically opposite sides of theopening and having inwardly extending opposed hooks at their outer endspositioned behind the clip, and a third arm extending from the openingat right angles to said pair of arms and. also having an inwardlyextending hook at its outer end positioned behind the clip, said pair ofhooks being engageable with the side edges of a strap and said thirdhook being engageable with an end of the strap.

CARL MUEHLBAUER.

REFERENCES CITED The following references are of record in the file ofthis patent:

Number Number 4 UNITED STATES PATENTS Name Date Von Burg May 4, 1943Mosher May 18, 1915 Mullen Feb. 18, 1919 Eklund Sept. 6, 1927 Zubaty.Dec. 11, 1928 Best June 11, 1935 Keltie Apr. 21, 1942 FOREIGN PATENTSCountry Date Great Britain June 19, 1915

